Mechanical movement



J. C. STONE.

MECHANICAL MOVEMENT.

APPLICATION FILED MAY 2, 1921.

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1. C. STONE.

MECHANICAL MOVEMENT.

APPLICATION man miv/2.1921.

Patented Feb. 21, 1922. f

' 2 SHEETS-SHEET 2.

.g'uvcnl'ob Jqy 5to/7e y @Mamma JAY c. STONE', or sPoKANE, WASHINGTON.

:useful Improvements in Mechanical Movements, of which the following is a specification. A

My present invention relates to improvements in` mechanical movements designed Vparticularly for converting the reciprocating motion of a driving mechanism to a rotary motion through the medium .of intermediate, oscillating mechanism and lever connections, whereby the driving .ofV the drivensh'aft may be laccomplished with ease, regularity andl Ywitlrthe eliminationv of'danger of a dead center occurring in the movement lof the parts. I For this purpose the mechanical movement is well adapted for use in connection with various power plants, as for instance a wind-mill or other motor operated by fluid currents. Y The invention consists-essentially 1n certain novel features of construction involving an oscillatable, power-transmitting lever interposed between the reciprocating part andthe rotary parts, and in certain combinations and arrangements of lever arms and connecting links between the oscillating lever and crank shaft for-insuring a uniform and'facile transmission of power as ywill be hereinafter more fully described and claimed. e v f In the accompanying drawings l have illustrated one complete example of' the physical embodiment of my invention wherein the parts are combined and arranged according to the best model have thuscfar devised for the practical application of-the principles of my invention. l

VFigure l is a view in side elevation of the mechanism involving 4 my invention, part of the oscillating lever being shown in section for convenience of illustration.

Figure 2 is a top plan view of ,themechal Figure 5 is a detail view of one the lever arm mechanisms looking from the left in Figure 1 as indicated by the arrow.

- Figure 6 is an enlarged view, partly broken .desired destination ,and use.

stroke of 'the' oscillating lever.

" Y e MECHANICAL MOVEMENT.

e 1,407,233, specification of renversement; I PatentedFeb. 21,1%?.

lApplication filed May`2, 1921. Serial No. 466,132.1y

away, showing the oscillating lever between the reciprocal and rotary members.

looking from the right in Figure .6', parts being shown in section.' Figure 8 is a plan view of one ofthe lever In the preferredform of the inventionV as l shown in the drawings, the operating parts are supported on a frame lk of suitable size and shape for the purpose, and in this frame 4the oscillating lever 2 is 'jonrnaled :'at'B.

l is anl edge view ofthe lever, l'

The lever isjadapted to swing in a verticaly i orv rode-is pivotedjat 4 the link or rod receiving a reciprocating motion ina horizontal direction from a suitable source of power and transmitting this v`motion to the `oscilplane and at its upper end aconnecting link v0 the reciprocal motion of the yconnecting rod*Y 4 isl transmitted to 'the driven',rotary shaft 5, disposedina horizontal plane and supported in' journal bearings 6 4in theframe vand provided with apulley wheel 7 from which powermay be takenby 'a' beltv 'its The leverage of the oscillatable lever m'ay be varied by changing the point of applicai tion of power thereto .and for this purpose the pin 4C connecting the rod 4 with the'lever is mounted on a rectangular'strap 8 in'the form of a metal band movable on the upper end of the lever;y Theband has V'attached thereto a rack bar 9 lyingparallel with ,the lever, and a rack wheel 10, journaled in the bracket l'iixed on the lever, engages this rack bar in order that by turning the hand crank 12'01"' the Wheel, the co-actioirof the wheel and rack will result VVin adjusting the strap 8 onthe'lever'to desired position Vfor shortening or lengthening the working The'leveris preferably ofmeta'l, rectangular in cross section and hollow for the accommodation of a leverlarm 18 encased therein, thel arm being adapted to oscillate with the lever, and also being adapted for longitudinal movement therein .with relal v j 105v Y tion to the lever, and for this purpose -,afslot which the pivot pinl 3 'is passed.

'14 is provided inthe movablearmlthrou'gh The longitudinal movement 'of the leverl .arm within vthe leverl is :guided-by means` of pairs of laterally disposed 'guide rollers Y journaled within the hollow llever and in position for frictional contact with theedges of the movable lever arm, while yat the lower extremity of the movable lever arm is jour` naled an anti-friction roller or wheel 16.. At its lower en'd the lever is fashioned with an open slot 17 and the movable lever arm within the lever is fashioned with a complementary slot .17', adjacent to `,the anti-friction roller 16 for a purpose to be described.

At the lower end of the oscillating` lever is provided a wrist pin 18 with cap 19for pivotal connection. with a pair of links 20, 21 and a third link 22, each of which is made up in sections joined by aturn buckle 23 in. order that the length of these ylinks may be adjusted for correct movement of the l parts, and the links are adapted, through a flexible connection to transmit motion to the driven shaft. The flexible connection includes a pair of bell crank levers, one of which 24, is pivoted at 25 inV the frame and has its long arm extended into the slots 17 17 of the lever and its movabley arm near its eXtrem-ity engages the anti-friction roller 16 of themovable lever arm at its upper side. T he short arm 26 of the bell cranklever 2l has a pin 2,7 making a pivotal connection with the slotted end 28 of .the link 20, and a spring I29 interposed between the 'long arm ofthe bell crank lever and the frame tends to hold the extremity of the long arm in'contact with the roller 16.

At the opposite side of the shaft 5 is located a second bell crank lever 30, piv-V oted in the frame at 31 and hav-ing a pivotal connection at 82 with the slotted end 33 of the link 22, and a spring` Se between t-he frame and long arm of this lever holds the long arm of the lever against the under side of the anti-friction roller 16.

The third link, 21, also has a slotted con-V nection at 35 and 36 with an angular4 latch member7 and ythis lever also has an arcuate flange 37 andlug 381:01- co-aetion with a pawl 39 of the latch which is pivoted in the bracket l0 in the frame and `provided lwith a spring 4:1 to hold the paw-l against the flange and forceit into contact with the lug 38 for the purpose of positively holding the longarm of bell crank lever when it is raised to its highest point during the lperiod that the wrist pin 18 travels the third quarterV of its movement and is well into thelast quarter.

- Thus it will appear that the oscillation of the main lever and y,its movable arm will,

through the wrist pin 18 cause the links Y2 0, 21, 22'to reciprocate horizontally, and the action Yof these links on the bell crank levers will cause 'said levers, .alternately to positively engage the roller 16 forcing down Yand V`lifting` up the roller and its movable arm with relation to the oscillating main lever, as indicated. in dotted linesv in Figure 1. '.llhe resulting action of the bell crank levers is a combined up and down movement 'of the movable lever arm, and the horizontal voscillation of the main lever causes a rotation ofthe roller end of the movable lever about the shaft 5 as a center.

' rlhe shaft 5 has xed at one end 'the crank wheel or disk 42, and the wrist pin 43 on the disk affords a journal bearing` for the anti-friction roller 16 on the movable arm the disk tends to urge the crank arm andV crank pin away from the disk center or shaft 5, the crank arm 'having a slotted Vextension 18 retainedby a pin 49 in the disk to allow this movement.

Referring to Figure v1 and assuming the rod 4; to be moved to the rightin the'dir'ection of the arrow, the main lever and its movable arm are swung; `on the pivot 3.V

ln this position the wrist pin 1S has 'reached and passed the extreme of its movement to the right, and the link 2O is urging the bell kcrank lever 24 to 'bear upon roller 16 and force the movable lever arm and crank pin downwardl", thus imparting rotary movement to the shaft 5. As the crank pin and roller 16 pass downwardly, andto the left, the action of the lever 24 iscompleted, and the link 2O7 because of the slotted connection at 27-28 is pulled to the Vleft in Figure 1 without action of the bell crank lever 2.4L, the latter being .held by 'its ,spring 29.

As the wrist pin swings to the left from position in Figure 1, the link 22 is pushed to ythe left until the inner wall of the slotted extension of the link contacts with the pin 32. The bell crank lever 30 is now oscillated on its pivot 31 and the long arm of the lever 30 is swung into engagement with the lower edge of roller 16, and as' the roller and crank pin pass through the latter part of the 3rd quarter andthe initial part of the lith quarter of this stroke,the lever 30 llifts the roller,

lmovable lever arm andcrank pin, causi'rwn ro tation of the'shaft 5. 'n A D lloy prevent a backward movement or reverse action of the crank pin when passing through .the fourth quarter of therevol-ution of the shaft 5, due to weight of the movable lever arm, the bell crank klever 30 is positively held by action of the pawl 39 on the lug 38 of the belllcrank lever, which holds the lever when its long arm is elevated during the period while the .wrist pin 1sv traveling through the 3rd quarter of the stroke.l "ll-lien l as the main lever Vagain reeiproeates or oseillates and reciprocates the link 22 and ,oseillates bell crank lever 30, the pawl 39 is with drawn from lug 38, releasing `the bell crank lever.

Any unevenness or irregularity in the rotary action of the crank pin is compensated for by the pivoted crank arm or crankV plate 45, which permits the crank pin to alter its relation to 'the shaft 5 and increase or decrease the leverage to insure a 'smooth and uniform movement. In this manner the reciprocating movement of the link 4 is converted into rotary movement ofthe shaft.

5 without necessity for use of a fly or balance wheel, the action of the partsis made positive, and a continuous power is transmitted and applied to the crank pinand crank wheel to revolve the shaft with a uniform rotary movement. f

Having thus fully described my invention, what I claim as new and desire to secure bv Letters Patent is Y l. The combination with a hollow, pivoted lever, and a reciprocating driving member, of a relatively movable lever arm, a driven shaft and a crank connection between said movable arm and shaft, oppositely disposed links connected with said lever, and complementary bell crank levers operativelyconnected with said links and adapted to alter-V nately co-act with said crank connection between the lever arm and driven shaft.

2. The combination with a hollow, pivoted lever and actuating means. of an internal movable lever arm having slotted connection with the pivoted lever, a rotary shaft and crank connections between said shaft and lever arm, oppositely disposed, extensible links pivoted on said lever, conr plementary bell crank levers operatively connected with said links, and the long arms of said bell crank levers-adapted to alternately engage said crank connections.

3. The combination with al hollow, oscillatable lever and a slotted, longitudinally movable lever arm therein having a crank pin and anti-friction roller thereon, a crank wheel and a rotary sha-ft, of oppositely disposed links pivoted to said lever, and com-- plementary bell crank levers pivoted to said links with their long arms adapted to altermately engage said roller.

, alternately 4L. The combination with. ahollow,ioscil .i

latable lever and a slotted, longitudinally movable lever'arm therein, av rotary shaft,

a crank wheel and a crank vpin connecting Asaid lever arm'and wheel and an antifriction roller on said pin within the v lever,V of oppositely disposed links connected to" said lever and provided withslottedexten' sions, a pair of pivoted bell c1a1il' `levers connected with said slotted extensions' and the long arms of said bell crank levers adapted to pass through slots in the ends of the lever andl lever arm to alternately engage said roller.

5. The combination with a hollow, oscil- ,Y

latablelever anda slotted lever arm therein having a crank pin and roller on its end, a rotary shaft, a crank wheel thereon and a crank arm pivoted onsaid wheelto support the crank pin, of oppositely disposed links pivoted to said lever, and vcomplementary 'bell crank levers operatively connected with said links with their long arms adapted to engage said roller. Y Y 6. The combination with an oscillatable lever and its relatively movable lever arm, of a rotary shaft and'crank disk, aneccenqtrically pivoted crank arm on said disk, a

crank pin connecting said armand lever arm and a roller onV said pin, 'of oppositely disposed links pivoted to said lever, and complementary bell crank levers operatively con-y nected with said linksv with `their longarms adapted to alternately engage said roller.

7. The combination with an oscillatable lever and its relatively, longitudinally mov; able lever arm having a crank pinthereon,

of a rotary shaft, a crank wheel and a lcrank arm pivoted on said wheel and engaging said pin, and alternately actuated means between s'aid lever and crank pin for rotating said shaft.

8. The combination with an oscillatable lever and its relatively, longitudinally movable lever arm having a crank pin and roller thereon, of a rotary shaft, a crank'wheel, a crank arm pivoted on said wheel and engaging said'. pin, a pair of Vbell crank levers adapted to alternately engage said roller,

and connections between said lever and bell f crank levers for actuating the latter. v

In testimony whereof I affix my signature.

f' JAY C. STONE. 

